source: rtems/c/src/lib/libbsp/unix/posix/startup/setvec.c @ 4e58d80

/*  set_vector
 *
 *  This routine installs an interrupt vector on UNIX.
 *
 *  INPUT:
 *    handler - interrupt handler entry point
 *    vector  - vector number
 *    type    - 0 indicates raw hardware connect
 *              1 indicates RTEMS interrupt connect
 *
 *  NOTE 'type' is ignored on hppa; all interrupts are owned by RTEMS
 *
 *  RETURNS:
 *    address of previous interrupt handler
 *
 *  COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
 *  On-Line Applications Research Corporation (OAR).
 *  All rights assigned to U.S. Government, 1994.
 *
 *  This material may be reproduced by or for the U.S. Government pursuant
 *  to the copyright license under the clause at DFARS 252.227-7013.  This
 *  notice must appear in all copies of this file and its derivatives.
 *
 *  $Id$
 */

#include <rtems.h>
#include <bsp.h>

/*
 * Install an interrupt handler in the right place
 * given its vector number from cpu/hppa.h
 * There are 2 places an interrupt can be installed
 *      _ISR_Vector_table
 *      bsp interrupt      XXX: nyi
 *
 * We decide which based on the vector number
 */

rtems_isr_entry
set_vector(                                     /* returns old vector */
    rtems_isr_entry     handler,                /* isr routine        */
    rtems_vector_number vector,                 /* vector number      */
    int                 type                    /* RTEMS or RAW intr  */
)
{
    rtems_isr_entry  rtems_isr_ptr;
    proc_ptr         raw_isr_ptr;

    if ( type ) {
      rtems_interrupt_catch( handler, vector, &rtems_isr_ptr );
      return rtems_isr_ptr;
    } else {
      _CPU_ISR_install_vector( vector, (proc_ptr) handler, &raw_isr_ptr );
      return raw_isr_ptr;
    }
   
}